package com.mc.micronmall.controller;

import cn.hutool.json.JSONObject;
import com.alipay.api.AlipayApiException;
import com.alipay.api.AlipayClient;
import com.alipay.api.DefaultAlipayClient;
import com.alipay.api.internal.util.AlipaySignature;
import com.alipay.api.request.AlipayTradePagePayRequest;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;

import com.mc.micronmall.config.AliPayConfig;
import com.mc.micronmall.domain.OrderOrder;
import com.mc.micronmall.mapper.OrderOrderMapper;
import com.mc.micronmall.vo.AliPay;
import jakarta.annotation.Resource;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;


import java.util.Date;
import java.util.HashMap;
import java.util.Map;

// xjlugv6874@sandbox.com
// 9428521.24 - 30 = 9428491.24 + 30 = 9428521.24
@RestController
@RequestMapping("/alipay")
public class AliPayController {

    //  https://openapi.alipaydev.com/gateway.do
    private static final String GATEWAY_URL = "https://openapi-sandbox.dl.alipaydev.com/gateway.do";
    private static final String FORMAT = "JSON";
    private static final String CHARSET = "UTF-8";
    //签名方式
    private static final String SIGN_TYPE = "RSA2";

    @Resource
    private AliPayConfig aliPayConfig;

    @Resource
    private OrderOrderMapper ordersMapper;

    @GetMapping("/pay") // &subject=xxx&traceNo=xxx&totalAmount=xxx
    public void pay(AliPay aliPay, HttpServletResponse httpResponse) throws Exception {

        // 1. 创建Client，通用SDK提供的Client，负责调用支付宝的API
        AlipayClient alipayClient = new DefaultAlipayClient(
                GATEWAY_URL, aliPayConfig.getAppId(),
                aliPayConfig.getAppPrivateKey(),
                FORMAT, CHARSET,
                aliPayConfig.getAlipayPublicKey(),
                SIGN_TYPE);
        // 2.创建Request并设置Request参数
        AlipayTradePagePayRequest request = getAlipayTradePagePayRequest(aliPay);

        // 执行请求，拿到响应的结果，返回给浏览器
        String form = "";
        try {
            form = alipayClient.pageExecute(request).getBody(); // 调用SDK生成表单
        } catch (AlipayApiException e) {
            e.printStackTrace();
        }
        httpResponse.setContentType("text/html;charset=" + CHARSET);
        httpResponse.getWriter().write(form);// 直接将完整的表单html输出到页面
        httpResponse.getWriter().flush();
        httpResponse.getWriter().close();

    }

    private AlipayTradePagePayRequest getAlipayTradePagePayRequest(AliPay aliPay) {
        AlipayTradePagePayRequest request = new AlipayTradePagePayRequest();  // 发送请求的 Request类
        request.setNotifyUrl(aliPayConfig.getNotifyUrl());
        JSONObject bizContent = new JSONObject();
        bizContent.set("out_trade_no", aliPay.getTraceNo());  // 我们自己生成的订单编号
        bizContent.set("total_amount", aliPay.getTotalAmount()); // 订单的总金额
        bizContent.set("subject", aliPay.getSubject());   // 支付的名称
        bizContent.set("product_code", "FAST_INSTANT_TRADE_PAY");  // 固定配置
        request.setBizContent(bizContent.toString());
        return request;
    }

    @PostMapping("/notify")  // 注意这里必须是POST接口
    public String payNotify(HttpServletRequest request) throws Exception {

        if (request.getParameter("trade_status").equals("TRADE_SUCCESS")) {
            System.out.println("=========支付宝异步回调========");


            Map<String, String> params = new HashMap<>();
            Map<String, String[]> requestParams = request.getParameterMap();
            for (String name : requestParams.keySet()) {

                params.put(name, request.getParameter(name));
                System.out.println(name + " = " + request.getParameter(name));
            }

            String outTradeNo = params.get("out_trade_no");
            String gmtPayment = params.get("gmt_payment");
            String alipayTradeNo = params.get("trade_no");
            String sign = params.get("sign");

            String content = AlipaySignature.getSignCheckContentV1(params);

            boolean checkSignature = AlipaySignature.rsa256CheckContent(
                    content, sign, aliPayConfig.getAlipayPublicKey(), "UTF-8"); // 验证签名

            // 支付宝验签
            if (checkSignature) {
                // 验签通过
                System.out.println("交易名称: " + params.get("subject"));
                System.out.println("交易状态: " + params.get("trade_status"));
                System.out.println("支付宝交易凭证号: " + params.get("trade_no"));
                System.out.println("商户订单号: " + params.get("out_trade_no"));
                System.out.println("交易金额: " + params.get("total_amount"));
                System.out.println("买家在支付宝唯一id: " + params.get("buyer_id"));
                System.out.println("买家付款时间: " + params.get("gmt_payment"));
                System.out.println("买家付款金额: " + params.get("buyer_pay_amount"));

                // 查询订单
                QueryWrapper<OrderOrder> queryWrapper = new QueryWrapper<>();
                queryWrapper.eq("order_sn", outTradeNo);
                OrderOrder orders = ordersMapper.selectOne(queryWrapper);
                if (orders != null) {
                    System.out.println(alipayTradeNo);
                    //orders.setAlipayNo(alipayTradeNo);
                    orders.setCreateTime(new Date());
                    orders.setStatus(1);
                    ordersMapper.updateById(orders);
                }
            }
        }
        return "success";
    }
}